Self-dumping scraper.



No. 810,165. PATENTED JAN. 16, 1906. J. F. MENDBNHALL.

SELF DUMPING SORAPER.

APPLIOATION FILED NOV. 8. 1905.

amvemtoz LLZ/L/ witnesses Q 1 I I after/nu JOHN F. MENDENHALL, OFSPRINGVILLE, UTAH.

SELF-DUIVIPING SCRAPER.

Specification of Letters Patent.

Patented Jan. 16, 1906.

Application filed November 8, 1905. Serial No 286,333.

To all whom, it may concern.-

Be it known that I, JOHN F. MENDEN- HALL, a citizen of the UnitedStates, residing at Springville, county of Utah, and State of Utah, haveinvented certain new and useful Improvements in Self-Dumping Scrapers,of which the following is a specification.

This invention relates to self-dumping scrapers.

The object of the present invention is the provision of simple, strong,and inexpensive mechanism adapted for application to ordinary wheeledand sliding surface scrapers which will be adapted to automatically dumpthe scraper-pan of its contents without exertion on the part of theoperator; and to this end the invention embodies a hinged dumpbarpositioned and operating in a novel manner, together with a novelarrangement of locking mechanism for the dump-bar to normally hold it inraised position, and releasing mechanism arranged and cooperating withthe locking mechanism in an improved fashion, all as set forthhereinafter.

In the accompanying drawings, Figure 1 is a perspective view showing theinvention aplied to a well-known type of wheeled scraper. Fig. 2 is aplan of only the pan and parts es pecially pertaining to my invention.Fig. 3 is a side elevation of Fig. 2. Fig. 4 is a rear elevation of Fig.2, and Fig. 5 is a detail of the locking mechanism, showing how itcooper- I ates with the dump-bar.

The scraper pan or scoop 1, wheels 2, dragyoke 3, and locking mechanism4 are all 0 ordinary or any preferred construction. A shoe 5 may beused, if desired. The handles 6 extend rearwardly from the pan and areadapted to be grasped by the operator in the usual fashion.

Secured by bolts or rivets to the back of the pan 1 arejournal-eyepieces 7, and in these journal-eyepieces is mounted to freelyturn a U-shaped dumpar 8, having secured to its respectiveforwardly-projecting ends points or shoes 9, which curve downwardly andare adapted to engage the ground when the dump-bar is allowed to drop.To prevent sidewise movement of the dump-bar, it is provided withadjustable collars 10.

Secured at 11 to the side of the pan 1 is a spring-latch 12, whichextends in a general up-and-down direction and is free to springinwardly and outwardly in relation to the side of the pan, said latchhaving an offset or bent latching-head 13 at its lower end, which isadapted to sustain the dump-bar in general horizontal position. and alsoto permit the latch-bar to easily snap past the head and engage itselftherewith after the dumping operation, as will presently appear.

Fastened to the side of the pan is an eye 14. Eyes 15 and 16 are securedat suitable points on one of the handles 6. A cord 17 runs freelythrough the eyes 14 15 16 and is connected to the inner face of thelatchinghead 13 at 18, so that upon exerting a pull on the cord 17 thelatch 12 will be pulled toward the side of pan 1 against its tendency tospring outwardly, and thus the dump-bar will be released. The free endof the cord 17 may be provided with a knot or handle 19.

The operation is as follows: When it is desired to dump the load of dirtin the scraperpan 1, the operator pulls cord 17, which draws thespring-latch 12 toward the side of the pan and releases thelatching-head 13 from the dump-bar 8, which thereupon falls by gravityon account of the leverage of the forwardly-extending portions thereof,bringing the points or shoes 9 into engagement with the ground, thedump-bar turning in the journal-eyes 7. As the scraper-pan is pulledforward by the horses or other motive power the back of the pan israised to such a height that the shoe 5 or front edge of the pan catchesthe ground, and the pan is turned thereby to a position slightly forwardof the perpendicular, whereby the dirt in the pan is dumped withoutexertion on the part of the operator. While the pan is being turned asaforesaid, the motion thereof, together with the force of gravity,causes the dump-bar 8 to swing into place and to snap past thelatching-head. 13 and reengage with the latch 12 to thereby catch itselfin position for a repetition of the operation after the pan has beenreturned to normal position and another load scraped and ready to dump.

Having thus I claim as new, and ters Patent, is-

1. In a self-dumping scraper, the combination with a scraper-pan or.scoop, of a dump bar having a portion journaled tov the pan andsubstantially straight arms extending forwardly at the sides of the panwhich are provided with free ends to engage the ground, and a latchadapted to engage the dump-bar to hold the forwardly-extending armsraised and in substantially horizontal position, together with means forreleasing said latch.

described my invention, what desire to secure by Let- 2. In aself-dumping scraper, the combination with a scraper-pan or scoop, of adumpbar of substantial U shape having a crosspieoe journaled to the backof the scraperpan or scoop and substantially straight arms extendingforwardly at the sides of the pan or scoop which are provided with freeends to engage the ground, a latch on the side of the pan or scoopadapted to engage one of said arms and hold the forwardly-extending armsraised and in substantially horizontal position, and means for releasingsaid latch.

3. In a self-dumping scraper, the combination with a scraper-pan orscoop, of a dumpbar having a portion journaled to the pan and armsextending forwardly at the sides of the pan which are provided with freeends to engage the ground, a spring. latch-bar secured to the side ofthe pan and extending in a general up-and-down direction having a freeportion provided with a latching-head adapted to engage and support thearm of the dump-bar, and means for releasing said latch-bar.

In testimony whereof I hereunto afiiX my signature in presence of twowitnesses.

JOHN F. MEN DEN HALL. Witnesses:

B. W. MENDENHALL, ALFRED L. BOOTH.

